Ever since Mixter and Barr demonstrated the relationship between disk protrusion and radicular pain nearly 50 years ago, there has been a swing toward mechanical explanations for all problems of this type. Murphy has proposed that inflammation rather than mechanical pressure is the basis of back pain and sciatica, and that the causal irritant is likely to be a chemical product of disk degeneration. That administration of steroids reduces the inflammatory process is well known. The present study was undertaken to acess our experience in using epidural steroid injection ofr patients suffering from diskogenic low back pain. Ten patients with the clinical diagnosis of sciatica and with post larninectomy sequelae were referred to the anesthesia department of Maryknoll hospital. Our routine epidural injection of the lumbar spine(L3-4) consists of 2ml of 2% xylocaine and 120mg of methylprednisolone(Depo medrol). Following the injection of Depo Medrol patients were encouraged to ambulate actively and were asked to evaluate their subsequent pain relief. Of the 10 patients studied, all patients experience pain relief within 10 minutes of the epidural injection. A follow up study of these patients was done between 5 and 10 months after injection. The results were as follows: 1) 3 patients: Complete relief. 2) 3 patients: moderate relief. 3) 3 patients: no relief. 4) 1 patient: technical failure.